Evaluation of Dynamic Var Support from PV Systems under Uncertain Weather Conditions

Eita Mizukami, Akihisa Kaneko, Yuji Takenobu, Satoru Akagi, Shinya Yoshizawa, Hideo Ishii, Yasuhiro Hayashi

研究成果: Conference contribution

抄録

Voltage ride-through (VRT) and dynamic voltage support (DVS) are advanced functions of photovoltaic (PV) systems that are expected to improve future power system stability. Toward the improvement in system stability, it is valuable for power system operators (PSOs) to evaluate the effects of these functions. However, it is not straightforward to evaluate the amount of volt-ampere reactive (var) injection from PV systems because var injection depends on weather conditions and on the terminal voltages of the PV systems during voltage sag. In addition, it is equally important to analyze var support from distribution systems (DSs) to accurately determine the amount of var injection in a power system since numerous PV systems are connected to DSs. In this study, we evaluate the var support at a substation of a DS with PV during a voltage sag under various weather conditions. The var injection was analyzed for several time zones and seasons to consider a change in solar radiation. A numerical simulation was conducted based on IEEE 13 Node Test Feeder Model with PV systems. The results indicated that there is a large variation in var support depending on seasons or time zones with different solar irradiance.

本文言語English
ホスト出版物のタイトル7th International Youth Conference on Energy, IYCE 2019
出版社Institute of Electrical and Electronics Engineers Inc.
ISBN(電子版)9781728139234
DOI
出版ステータスPublished - 2019 7
イベント7th International Youth Conference on Energy, IYCE 2019 - Bled, Slovenia
継続期間: 2019 7 32019 7 6

出版物シリーズ

名前7th International Youth Conference on Energy, IYCE 2019

Conference

Conference7th International Youth Conference on Energy, IYCE 2019
国/地域Slovenia
CityBled
Period19/7/319/7/6

ASJC Scopus subject areas

  • コンピュータ ネットワークおよび通信
  • エネルギー工学および電力技術
  • 再生可能エネルギー、持続可能性、環境
  • 電子工学および電気工学

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